The Logitech G9 is the latest in the long series of G series devices by the company, in previous entries we had seen the company play with optical versus laser as well as ergonomic and universal hand grip styles, this time around we get multiple grips for play with, MicroGear on the scroll wheel, more / heavier weights in the base and an adjustable range from 200dpi - 3200dpi with no lag.

Let’s go over the specs for a moment.

Performance

• Interchangeable Grips: Use the included Wide Load and Precision grips to get a fit and feel that’s best for your playing style. The satin texture and fuller shape of Wide Load add extra comfort while the DryGrip technology plus compact shape of the Precision grip give you unmatched fingertip control.
• 3200 dpi laser engine with Full-Speed USB: Get uncompromising speed and accuracy from a high-performance Gaming-Grade laser engine—plus instant cursor response with Full-Speed USB (up to 1000 reports/second).
• Game settings to go: Take your personal mouse preferences with you. The G9 saves mouse settings in onboard memory—store up to 5 profiles (including keyboard macros, dpi settings, and LED color) on the mouse and play your way—without additional software installation*—on other PCs.

Control

• MicroGear™ Precision Scroll Wheel: Use Logitech’s exclusive MicroGear™ scrolling technology for precise, click-to-click scrolling—perfect for quick weapon selection. Or switch modes for frictionless, hyper-fast scrolling.
• Adjustable sensitivity: Shift from pixel-precise targeting to lightning-fast maneuvers without pausing the action. The G9 gives you instant access to multiple sensitivity levels between 200 and 3200 dpi, without driver installation.
• Weight tuning system: Prefer a heavier or lighter mouse? Use the weight cartridge and up to 28 grams of metal weights to customize your G9 for just the right feel.
• Polytetrafluoroethylene feet: Super-slick feet glide effortlessly across almost any surface.

Comfort and Convenience

• Custom-color LEDs: A color LED display indicates the current sensitivity level and profile settings. Personalize the color LED display by choosing from hundreds of colors.
• More grip styles: Swap out your grip for a new look and feel. In addition to the provided Wide Load and Precision grips, other grip styles are available for purchase.

Overall the unit is really heavily packed with features from past units; personally it's nice to see MicroGear make it from the MX revolution to this new incarnation.

Let’s go over our field of test mice.

Razer Deathadder
Logitech G3
Logitech G5
Logitech G9
Logitech MX518